From the last millions of years of the Cretaceous period, comparatively few dinosaur fossils are known in North America. However, a new analysis indicates that this decline mainly reflects gaps in the fossil report and not necessarily dwindling dinosaur populations. For four important dinosaur families, after taking into account such distortions, a largely stable or increasing spatial distribution results. London (England). Before [...]
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From the last millions of years of the Cretaceous period, comparatively few dinosaur fossils are known in North America. However, a new analysis indicates that this decline mainly reflects gaps in the fossil report and not necessarily dwindling dinosaur populations. For four important dinosaur families, after taking into account such distortions, a largely stable or increasing spatial distribution results. London (England). Before [...]